Authorities say Davis Jr. shot his parents, James and Diva Davis, of Plainfield, Illinois, in his dorm room last Friday. He was captured early Saturday after a 16-hour manhunt in Mount Pleasant, Michigan.

A train conductor called 911 when he spotted Davis Jr. in his underwear. Chris Bagwell, president of Great Lakes Central Railroad, says the crew wondered if he might try to jump on the train.

A funeral for Davis Jr.'s parents is set for Saturday in Broadview, Illinois.